🇺🇸 DCA
Washington
2325 mi
SEA 🇺🇸
Seattle

Washington to Seattle Flights

Ronald Reagan Washington National Airport Seattle–Tacoma International Airport 2 airlines

Get Notified About Route Changes

Track up to 3 airports free. Weekly alerts when airlines add or remove routes.

Sign Up Free

The Washington to Seattle route connects Ronald Reagan Washington National Airport (DCA) in US with Seattle–Tacoma International Airport (SEA) in US. This medium-haul flight covers approximately 2325 miles (3742 km). This route is served by 2 airlines: Alaska Airlines, Delta Air Lines.

Search tickets for this route

Compare flight prices across hundreds of booking sites

Search DCA → SEA flights

Opens a live price search — just pick your dates

Departure Airport

Ronald Reagan Washington National Airport

ICAO Code:
KDCA
IATA Code:
DCA
City:
🇺🇸 Washington
Country:
US
Elevation:
15 ft

Destination Airport

Seattle–Tacoma International Airport

ICAO Code:
KSEA
IATA Code:
SEA
City:
🇺🇸 Seattle
Country:
US
Elevation:
433 ft

2

Operators

2

Routes Tracked

2325

Miles

-

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
Alaska Airlines ASA AS
Delta Air Lines DAL DL

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 2 8%
Tuesday 2 8%
Wednesday 7 29%
Thursday 4 17%
Friday 7 29%
Saturday 1 4%
Sunday 1 4%

Pattern Analysis

Data Points: 24
API observations used to build this analysis
Weekdays: 22 flights
Weekend: 2 flights
Business Route More active on weekdays

All Flight Routes

2 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
- B738 -
M T W T F S S
Jun 16, 2026 Active
- B752 -
M T W T F S S
Jun 16, 2026 Active
Total Routes: 2
Active Routes: 2
Unique Airlines: 2
Aircraft Types: 2

Spotted Departure Times

No departure times available

Departure times will be populated as flight data is collected for this route.